Congressional hopeful Sue Sylvester starts a smear campaign to ruin the candidacy of her biggest rival. Puck falls in love, and glee club directors Will and Shelby encourage some friendly competition between their clubs

When Will tries to plan a special surprise for Emma, he enlists the glee club to help him sweep her off her feet. Meanwhile, Becky sets her sights on Artie, and Finn makes an announcement about his life plans after high school that surprises the glee club.

Brittany goes into high gear as class president to spearhead the prom. Then, after prom king and queen nominations are announced, the kids kick into campaign mode, and some of the outcasts organize a rival celebration.

Tina's head injury from falling into a fountain leaves her seeing her fellow singers and other people at McKinley High in a new way as rehearsals continue for the glee club's Nationals performance.

The glee club travels to Chicago, Illinois, to compete in Nationals against the best show choirs in the country, including Vocal Adrenaline, for celebrity judges including Lindsay Lohan and Perez Hilton.